156724940

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{281}}^1\times {\mathrm{353}}^1$

素因数の和:722

約数の個数: 48

約数和(自身を含む): 335422080

約数和(自身を除く): 178697140

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 281, 316, 353, 395, 562, 706, 790, 1124, 1405, 1412, 1580, 1765, 2810, 3530, 5620, 7060, 22199, 27887, 44398, 55774, 88796, 99193, 110995, 111548, 139435, 198386, 221990, 278870, 396772, 443980, 495965, 557740, 991930, 1983860, 7836247, 15672494, 31344988, 39181235, 78362470, 156724940]

約数ペア:

[(1, 156724940), (2, 78362470), (4, 39181235), (5, 31344988), (10, 15672494), (20, 7836247), (79, 1983860), (158, 991930), (281, 557740), (316, 495965), (353, 443980), (395, 396772), (562, 278870), (706, 221990), (790, 198386), (1124, 139435), (1405, 111548), (1412, 110995), (1580, 99193), (1765, 88796), (2810, 55774), (3530, 44398), (5620, 27887), (7060, 22199)]